Foley & Mansfield
Foley & Mansfield

Margaret I. Johnson

Partner - Los Angeles


Bar Admissions: California; U.S. District Court, Central District of California; U.S. Court of Appeals, Ninth Circuit

Practice Groups: Appellate; Toxic Tort / Mass Tort; Product Liability; Commercial Litigation; Construction Litigation; Real Estate

Education: Southwestern University School of Law, JD; University of California, Los Angeles, B.A. in Political Science, concentration in Business Administration

Memberships: State Bar of California; Los Angeles County Bar Association – Appellate Courts Committee; Asian Pacific American Women Lawyers Alliance; Supreme Court Historical Society; Asian Pacific American Bar Association (former Judicial and Public Appointments Committee Chair and Board Member)


Margaret Johnson is a Partner in Foley & Mansfield’s Los Angeles office. She focuses her practice in the following areas: Appellate, Toxic Tort/Mass Tort, Product Liability, Commercial Litigation, Construction Litigation, and Real Estate.

Margaret has extensive experience both as an appellate practitioner and as a litigator. She has handled numerous writs and appeals in both state and federal courts of appeal for over 20 years. Among Margaret’s recent published appellate victories is City of Pasadena v. Superior Court (Reyes-Jauregui) (2017) 12 Cal.App.5th 1340 in which the Court of Appeal defined California law governing the deadline for presenting government tort claims arising from asbestos exposure.  Specifically, the appellate court held under Government Code section 901, “the date upon which the cause of action would be deemed to have accrued within the meaning of the [applicable] statute of limitations” is the date on which a plaintiff discovers or should reasonably have discovered that she had suffered a compensable injury” --  not when the plaintiff suffers “disability” as defined by Code of Civil Procedure section 340.2 (the statute of limitations for asbestos injury actions).  (Id. at 1343-44.)

Margaret also served as lead appellate counsel in CertainTeed v. Superior Court (Hart) (2014) 222 Cal.App.4th 1053 – a 70+ defendant complex product liability preference action, resulting in a successful statutory interpretation writ campaign reversing the trial court’s order and confirming that trial courts have the discretion to and “shall allow additional time, beyond any limits imposed by [Code of Civil Procedure section 2025.290] if needed to fairly examine the deponent.”

As an experienced litigator, Margaret has advised clients ranging from individuals to multinational Fortune 10 corporations, representing their interests in California and providing support for their legal teams on a national level.  Her diverse background and experience makes her uniquely qualified to bring a multi-faced perspective to “high stakes" litigation from the inception of the case through the conclusion of the appellate process.

Margaret has served as lead counsel for brief writing and oral argument on key issues at both the trial court and appellate levels in numerous cases involving more than 100 parties.  Her ability to effectively negotiate with opposing and contrasting positions while advocating for her clients’ interests was integral to her work as Defense Liaison Counsel for Judicial Council Coordinated proceedings filed in the Los Angeles, Orange, and San Diego counties, assisting the Coordination Trial Judge in the development of case management orders governing all proceedings from case filings to discovery and trial.

In addition to her trial and appellate courtroom experience, Margaret has provided consulting services on California litigation and appellate practice for Thomson Reuters, the world’s largest publisher of legal reference materials.


April 9, 2019
Foley & Mansfield Prevails at California Appeals Court

Foley & Mansfield secured an appellate victory for our client in a case involving indemnity and negligence at a worksite in Berkeley, California.


August 13, 2018
Foley & Mansfield Los Angeles Scores a Published Appellate Victory for a Talcum Product Manufacturer

Foley & Mansfield’s Los Angeles defense team succeeded in obtaining a published reversal of a trial court order which denied the firm’s client, a talcum product manufacturer (“TPM”), all of its prevailing party costs under Code of Civil Procedure sections 1032, 1033.5, and 998.


January 8, 2018
Foley & Mansfield Names New Equity Partners, Additions to Partnership

Foley & Mansfield is pleased to announce the election of seven partners to the Firm’s Equity Partnership, and the addition of eight attorneys to its Partnership.



  • Speaker, HarrisMartin California Asbestos Litigation Conference


  • Volunteer, The Alliance for Children's Rights
  • Volunteer, Los Angeles County Bar Association's Veteran's Legal Services Project


  • Court of Appeal/Los Angeles County Bar Association Appellate Court’s Committee’s Appellate Court Experience (ACE) Program

  • Founding Committee, Doors of Hope Women’s Shelter (received commendation from the City of Los Angeles for service)

  • Former City Commissioner, City of Lomita Community Development Advisory Board; Vice Chair - General Planning Committee 

  • Bob Hope USO at LAX

  • Past President and Chairperson of the Board of Directors, Los Angeles Rowing Club

  • Volunteer, Habitat for Humanity, Union Rescue Mission, Beacon Light Mission, Camp Pendleton YMCA, Foothill Unity Center, and Food From The Bar (Los Angeles Regional Food Bank)


  • Legislature Considering Asbestos Bills, Los Angeles Daily Journal - April 28, 2017 -  Read This Article.